StockStory flags DexCom, SEI as preferred mid-cap picks, questions Bentley Systems valuation

StockStory highlighted DexCom (DXCM) and SEI Investments (SEIC) as mid-cap stocks with stronger fundamental profiles, while expressing caution on Bentley Systems (BSY), citing valuation concerns in a May 15, 2026, note. Bentley Systems, with a market capitalization of $10.22 billion, was cited as trading at $32.66, or 6.1 times forward price-to-sales. DexCom, valued at $22.89 billion, was listed at $59.74 a share, or 23 times forward earnings. SEI Investments, with an $11.02 billion market value, was quoted at $91.57 a share, or 15.1 times forward earnings. The article framed mid-cap stocks as companies with established business models but exposure to competition from larger incumbents and emerging challengers. It did not disclose new earnings, guidance, analyst ratings or corporate actions for the three companies.